The big question is why does a hiccup cause the muscles of the iris to contract which opens the aperture of the pupil i.e. the eyes dilate? This normally happens when the surroundings become dark and the eye has to … Continue reading →
Yes, cats’ eyes are more sensitive to light than those of humans. This is why they shine in the dark because of a reflective layer behind the retina which is called the tapetum lucidum – translation: “bright tapestry”. Humans do … Continue reading →
The question is asking whether domestic cats prefer the amount of light encountered in daytime or at night. There is no doubt that the question has been asked because it is a well-known fact that domestic cats have retinas containing … Continue reading →
My research and my own thoughts have brought me to the conclusion that there are two reasons why cat pupils are slits rather than circular apertures. It comes down to evolution and survival as is always the case with respect … Continue reading →
The question in the title is probably meant to mean: do cats see objects under ultraviolet light only? For humans, ultraviolet light is beyond the visible spectrum and so we can’t see it. However, fundamentally, the anatomy of the cat’s … Continue reading →
Cats must have binocular vision because they have two eyes working in unison to create one image in the brain. Cats have the most highly developed binocular vision of all the carnivores – Fiona Sunquist writing Wild Cats of the … Continue reading →
Cats cannot see infrared light because it is not part of the visible spectrum. In this way cats are identical to humans except there MAY be a difference in that it is said that cats might be able to see … Continue reading →
This is a really nice picture of a cat, actually a cat with a big following on Twitter whose name is Curious Zelda, with wide open pupils because it was taken in low light conditions. You can click on it … Continue reading →
Louie was born without irises and tear ducts. His congenital condition is called aniridia. The picture of him is startling and worrying but we needn’t be worried because although he had a hard start to life he is now loved … Continue reading →
It’s just a game. For the cat, the body gears up as if hunting. One of the changes is the irises of the eyes pulls open the pupils to let in more light to see better. That’s the way I … Continue reading →
